'''
题目：输入一行字符，分别统计出其中英文字母、空格、数字和其它字符的个数。

程序分析：利用 while 或 for 语句,条件为输入的字符不为 '\n'。


'''
# !/usr/bin/python3

import string

s = input('请输入一个字符串:\n')
letters = 0
space = 0
digit = 0
others = 0
for c in s:
    if c.isalpha():
        letters += 1
    elif c.isspace():
        space += 1
    elif c.isdigit():
        digit += 1
    else:
        others += 1
print('char = %d,space = %d,digit = %d,others = %d' % (letters, space, digit, others))


def aa ():
    a ='223'
    if a.isalpha():
        print('letter')

    elif a.isdigit():
        print('int')
    elif a.isspace():
        print('space')
    else:
        print('nothing')


aa()
'''

请输入一个字符串:
1245  1212    
char = 0,space = 6,digit = 8,others = 0

'''









